Fort Collins 7-day weather forecast

Written by:
June 8, 2026
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Fort Collins 7-day weather forecast

Stacker created the forecast for Fort Collins, Colorado using data from OpenWeather. This week's high is 108 °F on Monday, while the low is 66 °F on Thursday. There are expected to be 4 sunny days and rain on 6 days this week.

NWS Denver CO has issued an air quality alert until Monday at 04:00 PM and a heat advisory until Tuesday at 09:00 PM.

Monday, July 20

- High of 108 °F, low of 73 °F (14% humidity)
- Sunny with a 21% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 5:46 AM, sunset at 8:26 PM
1 / 6
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Tuesday, July 21

- High of 104 °F, low of 72 °F (17% humidity)
- Sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (12 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:47 AM, sunset at 8:25 PM
- First quarter moon
2 / 6
IKO-studio // Shutterstock

Wednesday, July 22

- High of 96 °F, low of 67 °F (20% humidity)
- Partly cloudy with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:48 AM, sunset at 8:25 PM
3 / 6
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Thursday, July 23

- High of 94 °F, low of 66 °F (35% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:48 AM, sunset at 8:24 PM
4 / 6
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Friday, July 24

- High of 103 °F, low of 69 °F (12% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:49 AM, sunset at 8:23 PM
5 / 6
Leszek Glasner // Shutterstock

Saturday, July 25

- High of 101 °F, low of 71 °F (13% humidity)
- Mostly sunny with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:50 AM, sunset at 8:22 PM
6 / 6
Ahmet Naim // Shutterstock

Sunday, July 26

- High of 102 °F, low of 72 °F (12% humidity)
- Partly cloudy with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 5:51 AM, sunset at 8:21 PM

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